Sheet-metal construction.



SHEET METAL COVvISTRUCTIONr APPLICATION FILED ocr. 13. I916- 13%49531 3 Patented Dec. 11, 1917,

2 SHEETS-SHEET I OTHO M. OTTE, DE JAMESTOWN, NEW YORK.

ESIITEET-lYIE'lAL CONSTRUCTION.

Application filed. Uctoberlfi, 1916.

The invention relates to a novel manner of attaching sheet metal plates, particularly paneling and similar constructions; and the improvement consists in providing an offset in or on. the sheet metal plate to which the molding or other sheet metal work is to be attached, which offset is shaped in its outer portionto conform to the contour of the molding or sheet metal work to which it is to be attached so that the contacting sheets of metal may be attached to one another by spot welding, an opening being provided in the sheet metal plate through which one of the points of the spot welder may be inserted, the other point being applied on the outer surface of the molding or other sheet metal work; and the invention consists in the novel features and combinations hereinafter set forth and claimed.

lln the drawings, Figure 1 is a sectional perspective view of a portion of a sheet metal construction as, for example, a door or panel work, the sectional view being shown directl y through the offset thereby showing said offset shaped in its outer portion to conform to the contour of the molding; and Fig. 2 is a sectional. perspective view of the sheet metal plate without the molding showing the entire offset as struck from the metal plate and shaped for the molding shown in Fig. 1; and Figs 3 and 1 and 5 and 6 showsectional perspective views of different shaped offsets, each conforming to the contour of the molding to be attached, Fig. 5 showing in dotted outline one of the welding points extending through the opening in the sheet metal plate made by striking out the offset. Fig; 7 is a sectional perspective view with the section crosswise of the sheet metal plate and the molding, said molding being of so great depth as to prevent the use of an offset,

as shown in Figs. 1-6; and Figs. 8 and 9 showing the manner in which the offset is cut and struck up into the lug or truss form, each of the parts of the offsetforming, as it were, struts which are each attached to the inner side of the molding by spot welding, the molding thereby completing the truss Specification of Letters Patent.

Patented Dec. 11, 191'r.

Serial No. 126,304.

construction, Fig. 9 showing-a plan viewof lugs. FigulO is a lengthwisesectional View" at line X- X in Fig. 3 showing a series of spaced conforming offsets welded to the sheet metal molding. Fig.11 is a perspective View of the sheet metal plate without the molding showing amodiliraition in the 'construction of the conforming offsets in which the offset is made as a-conforming clip and spot welded to the metal plate, a hole being provided in said plate beneath the conforming portion of the clip; and Fig. 12 is a sectional perspective view'of the same construction with the molding attached thereon, said molding being broken away to show the one half of the conforming clip welded to the metal plate; and Fig. 13 is a front perspective view of the conforming metal clip liefore it is welded to the metal plate. Figs. 1-1, 15 and 16 show perspective views of the different portions of the conforming metal clip showing a modification of the construction shown in Figs. 7, 8 and 9, applying the conforming metal clip to the deep construction instead of the conforming offset. Fig. 17 is a sectional view at line Y-Y in Fig. 15 showing a series ofconforming metal clips spot welded to the sheet metal plate as well as to the molding.

Like characters of reference refer to corresponding parts in the several views.

The numeral 10 designates a sheetmetal plate provided with a lengthwise angle 11 within which the molding 12 is usually at tached though the angle 11 is not essential to this method of attaclunent. Thismethod of attachment is used more often in attaching molding in panel work and similar constructions, though it maybe used? in attachingany spaced sheets of metal.

The molding 12 may be left withoutim turned flanged edges as shown at 13 or may have inturned flanged edges 1-1 whenv desired thoughthey are rarely necessary since the manner of attachn'ient forms a perfectjoint when properly alined so that the oint takes a smooth finish and the manner of attach ment is so strong that it holds the molding 12 rigidly in line.

The Jreferred method consists in strikin up an offset 15 whose outer portion or face 16 is shaped to conform to the contourof the molding or other sheet metal work 12, which in Figs. 1, 2, 11, 12 and 13 is ogee; in Figs.3 and 4 it is slightly inclined, and.

in Figs. 5, 6, 7, 8, 14L, 15 and 16 it is horizontal.

The striking up of the offset 15 provides an opening 17 into which the point 18 of the welder may be inserted so that the opposite point may be applied on the outer side of the molding 12 thereby quickly and easily spot welding the two conforming sheets of metal making them one, and rigidly attaching the molding 12 to the sheet 10, it only being necessary to have care in fitting the molding 12 to the sheet 10 before spot weld- 111 Where the molding or other sheet metal work is too deep, as in the molding 19 in Fig. 7, so that the sheet metal cannot be stretched sufficiently to form a contacting offset for the deep molding 19, the sheet metal plate 10 is cut as shown in Fig. 9 with a central cross cut 20, providing two lugs or struts 21, the upper ends 22 of which are shaped to conform to the contour of the inner wall of the molding 19. It is apparent that no matter how deep the molding or sheet metal work 19 may be, the pair of oflset struts or lugs 21 of suflicient depth may be cut from the sheet of metal 10 and each of the two outer ends 22 being spot welded to the deep molding 19 forms a strong and rigid attachment thereto which holds the molding firmly in place so that it can be finished the same as though it were a part of' the plate 10.

In attaching a strip of molding spaced offsets 15 or 21 are struck up from the sheet of metal 10 sufliciently close to one another to hold the molding 12 firmly in line and provide a strong attachment to the sheet metal plate 10. This manner of attachment for molding and other hollow sheet metal construction can, be used wherever the inner side of the sheet metal plate 10 is not exposed, as for example in all hollow door or panel work and forms an exceedingly simple and durable method of attachment having great strength, since the molding 12 cannot be removed from the sheet of metal 10 without destroying the ofiset 15 or 21 to which it is firmly welded. It also adjusts it so rigidly that there is no opportunity for working loose and rattling upon sheet metal car work and similar constructions.

The modification shown in Figs. 1117 inclusive attains the same purpose in substantially the same manner by means of clips 23 whiehare attached by spot welding each end 25 to the sheet metal plate 10 over a hole 24 through which the point of the spot welder may be inserted for spot welding, the raised portion 16 conforming to the similarly shaped molding 12 the same as the offset 15. The only difference between this modification and the preferred offset form 15 is that the separate clips are bent to the required shape and attached by spot welding instead of being struck out from the sheet metal plate 10.

The striking out of the offset 15 from the sheet metal plate 10 is the simpler and easier method, since it forms the hole 17 and the offset 15 with one movement of the die, thereby quickly and easily attaining the purpose, the ends of' the offset 15 being integral with the plate 10, whereas the clips 2? have to be spot welded to the plate 10 and the holes 241 have to be punched specially. The deep form of the modification is shown in Figs. 14-, 15 and 16, in which the clips at are spot welded at one end to the platc lo and at the other to the molding If), and, preferably, two openings 21 are provided beneath the ends 2 for spot welding.

I claim as new 1. In sheet metal construction. a sheet metal plate having an angle therein. a strip of sheet metal molding fitting in said angle, and spaced offset portions on said plate a spaced distance from said angle and shaped to fit against said molding, said molding being secured to the plate by attachment to the offset portions.

2. The hereiudescribed method of attaching hollow metal members to the front face of a base sheet from the rear face ol said sheet and at a point intcriorly of the member which consists in first l'orn'iing a hole in the sheet so as to be concealed by said member, then in providing a connection extending from the sheet to the member interior, and finally in effecting securemcnt oi" the connection to the member through said hole.

3. The hereindescribcd method of attaching hollow metal members to the front face of a base sheet from the rear face ol said sheet and at a point inleriorlv of the 1nc1nher, which consists in first striking up a part of the sheet to form a hole concealed by said member and a connection which latteris engaged with the inner face of the member, and finally in effecting securement of the connection to the member through said hole.

1. In sheet metal constrnctitm, a plate having an angled part, molding fitted in the angle and having its approxin'iate central parts spaced from the plate, and coin neetions bridging the space between the approximate central parts of the molding and plate and secured to meh to positively attach the molding to the plate.

In testimony whereof I have aflixed my signature in the presence of two witnesses.

OTHO M. OTTE.

lVitnesses H. A. Sannnnne, I. E. Nonns'rnoM.

@op ies'of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, I). G. 

